// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.7.0 <0.9.0;
// Define a contract named 'darray'.
contract darray {
// Declare a dynamic array 'myarray' of type uint256.
// This array can change in size over time, allowing elements to be added or removed.
uint256[] myarray;
// Define a function 'addtoarray' to add a number to 'myarray'.
// This function takes a uint256 '_number', adds it to the array, and returns
// the added number and the new length of the array.
function addtoarray(uint256 _number) public returns (uint256, uint256) {
myarray.push(_number); // Add '_number' to the end of 'myarray'.
return (_number, myarray.length); // Return the added number and the new array length.
}
// Define a